Funct. Mater. 2023; 30 (3): 350-355.
Study of the effect of doping with (Zn,Tc) on the electronic and optical properties of FeNi3 alloys: ab-inition calculation
1Ecole Nrmale Superieure de Ouargla, 30000 Ouargla, Algeria
2Department of Physics, College of Science, University of Kirkuk, Iraq
3Research Center in Industrial Technologies CRTI, P.O. Box 64, Cheraga, 16014 Algiers, Algeria
4Faculty of Science and Technology, University of Mustapha Stambouli of Mascara, 29000, Algeria
The structural, electronic and optical properties of the FeNi2Zn and FeNi2Tc alloys were studied using the first-principles planar wave method compatible with the ultrasoft pseudopotential scheme under the density functional theory (DFT). The calculated equilibrium lattice constant for FeNi3 is very close with other available results. It turns out that the large contribution of d electrons to the total electronic density of states is dominant, which in turn affects the electronic and magnetic properties of these alloys. The electronic band structure, total and partial electron density were analyzed and it was concluded that the FeNi2Tc alloy has greater magnetic properties; absorption coefficient, optical conductivity, and refractive index were calculated for both alloys.
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